//?細(xì)節(jié):?本界面上設(shè)置,?下個(gè)界面上顯示??
//?方式一??
self.navigationItem.backBarButtonItem?=?[[UIBarButtonItem?alloc]?initWithTitle:@"返回"?style:UIBarButtonItemStylePlain?target:nil?action:nil];??
//?方式二??
UIBarButtonItem?*?backButtonItem?=?[[UIBarButtonItem?alloc]?init];??
backButtonItem.title?=?@"返回";??
self.navigationItem.backBarButtonItem?=?backButtonItem;??
修改返回鍵
摘自：https://blog.csdn.net/u011096206/article/details/50606778
